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Optimization of 18650 Cells Arrangement in Tesla Battery Pack with Active, Passive and Hybrid Cooling Systems

Shamekhi, Alireza | 2022

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 55394 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Aryanpour, Masoud
  7. Abstract:
  8. In this study, three active, passive, and hybrid thermal management systems are applied to a lithium battery module with industrial specifications, i.e., Tesla battery module, and the optimal conditions are extracted. The thermal and electrochemical behavior of battery cells is modeled using the quasi-two-dimensional approach by Newman’s method. The effects of inter-cellular distance on the maximum temperature and on the temperature distribution in the pack as the target variables are thoroughly investigated. A suitable range for the above distances is then determined in order to reduce the overall cooling power and the expected thermal performance of the pack. The results of temperature distribution are investigated, analyzed, and discussed. In addition, a systematic and comprehensive method for the thermal optimization of modules of batteries consisting of cylindrical cells cooled by passive or hybrid thermal management systems is introduced. With the help of this method and with two viewpoints of upper and lower limits, the optimal conditions are calculated in terms of the thickness of the phase change material layer and the inlet air velocity in the Tesla battery pack.
  9. Keywords:
  10. Hybrid Cooling Tower ; Lithium Ion Batteries ; Air Cooling ; Batteries In Transportation Optimization ; Battery Pack Thermal Management ; Passive Cooling ; Active Cooling

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